Sedimentation Pond No 18 Reservoir Report
Last Updated: December 5, 2025
Sedimentation Pond No 18, located in Jewett, Texas, serves as a vital infrastructure for managing tailings from mining activities in the area.
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Summary
The dam, primarily constructed with earth materials, stands at a height of 18 feet and has a storage capacity of 825 acre-feet. The pond covers a surface area of 52 acres and is situated along Lambs Creek in Leon County, Texas. Despite being privately owned, the state regulatory agency TCEQ oversees the permitting, inspection, and enforcement processes for Sedimentation Pond No 18.
With a high risk assessment rating of 2, Sedimentation Pond No 18 faces potential hazards that necessitate proper risk management measures. The pond does not have a spillway and is equipped with only one outlet gate. Although the condition assessment is not rated and the last inspection date was in 2011, the dam's structural integrity and functionality are crucial for ensuring the safety of the surrounding environment and community. As a part of the Mine Safety and Health Administration's regulatory oversight, Sedimentation Pond No 18 plays a critical role in managing water resources and mitigating the impact of mining activities on the local ecosystem.
As water resource and climate enthusiasts, understanding the significance of infrastructure like Sedimentation Pond No 18 in managing tailings and protecting water quality is essential. The pond's location along Lambs Creek highlights the interconnectedness of water bodies and the need for responsible dam management practices. Monitoring the condition and safety of Sedimentation Pond No 18, especially in the face of potential hazards, is crucial for maintaining ecological balance and safeguarding water resources in the region.
Dam Height |
18 |
River Or Stream |
LAMBS CREEK |
Primary Dam Type |
Earth |
Surface Area |
52 |
Hydraulic Height |
18 |
Drainage Area |
6 |
Nid Storage |
825 |
Structural Height |
18 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Public Use Area 5 - Thornton
|
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Public Use Area 3 - Groesbeck
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Public Use Area 2 - Groesbeck
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Sedimentation Pond No 18
Lk Limestone Nr Marquez